[HADOOP-8938] add option to do better diags of startup configuration

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: 1.1.0, 2.0.2-alpha
• Component/s: bin
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 17/Oct/12 10:48
• Updated: 08/Feb/15 17:41
• Resolved: 08/Feb/15 17:41

Description

HADOOP-8931 shows a symptom of a larger problem: we need better diagnostics of what all the environment variables and settings going through the hadoop scripts to find out why something isn't working.

Ideally some command line parameter to the scripts (or even: a new environment variable) could trigger more display of critical parameters.

Issue Links

• is duplicated by: HADOOP-11013 CLASSPATH handling should be consolidated, debuggable